msgsm32.acm: Add support for format enumeration.
This commit is contained in:
Maarten Lankhorst
Alexandre Julliard
parent
58b5a3f6be
commit
37a89ff073
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@ -139,6 +139,229 @@ static LRESULT GSM_DriverDetails(PACMDRIVERDETAILSW add)
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return MMSYSERR_NOERROR;
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}
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/* Validate a WAVEFORMATEX structure */
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static DWORD GSM_FormatValidate(const WAVEFORMATEX *wfx)
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{
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if (wfx->nChannels != 1)
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return 0;
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switch (wfx->wFormatTag)
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{
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case WAVE_FORMAT_PCM:
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if (wfx->wBitsPerSample != 16)
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{
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WARN("PCM wBitsPerSample %u\n", wfx->wBitsPerSample);
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return 0;
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}
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if (wfx->nBlockAlign != 2)
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{
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WARN("PCM nBlockAlign %u\n", wfx->nBlockAlign);
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return 0;
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}
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if (wfx->nAvgBytesPerSec != wfx->nBlockAlign * wfx->nSamplesPerSec)
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{
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WARN("PCM nAvgBytesPerSec %u/%u\n",
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wfx->nAvgBytesPerSec,
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wfx->nBlockAlign * wfx->nSamplesPerSec);
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return 0;
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}
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return 1;
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case WAVE_FORMAT_GSM610:
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if (wfx->cbSize < sizeof(WORD))
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{
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WARN("GSM cbSize %u\n", wfx->cbSize);
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return 0;
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}
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if (wfx->wBitsPerSample != 0)
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{
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WARN("GSM wBitsPerSample %u\n", wfx->wBitsPerSample);
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return 0;
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}
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if (wfx->nBlockAlign != 65)
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{
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WARN("GSM nBlockAlign %u\n", wfx->nBlockAlign);
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return 0;
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}
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if (((GSM610WAVEFORMAT*)wfx)->wSamplesPerBlock != 320)
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{
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WARN("GSM wSamplesPerBlock %u\n",
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((GSM610WAVEFORMAT*)wfx)->wSamplesPerBlock);
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return 0;
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}
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if (wfx->nAvgBytesPerSec != wfx->nSamplesPerSec * 65 / 320)
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{
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WARN("GSM nAvgBytesPerSec %d / %d\n",
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wfx->nAvgBytesPerSec, wfx->nSamplesPerSec * 65 / 320);
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return 0;
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}
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return 1;
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default:
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return 0;
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}
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return 0;
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}
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static const DWORD gsm_rates[] = { 8000, 11025, 22050, 44100, 48000, 96000 };
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#define NUM_RATES (sizeof(gsm_rates)/sizeof(*gsm_rates))
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/***********************************************************************
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* GSM_FormatTagDetails
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*
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*/
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static LRESULT GSM_FormatTagDetails(PACMFORMATTAGDETAILSW aftd, DWORD dwQuery)
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{
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static const WCHAR szPcm[]={'P','C','M',0};
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static const WCHAR szGsm[]={'G','S','M',' ','6','.','1','0',0};
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switch (dwQuery)
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{
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case ACM_FORMATTAGDETAILSF_INDEX:
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if (aftd->dwFormatTagIndex > 1) return ACMERR_NOTPOSSIBLE;
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break;
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case ACM_FORMATTAGDETAILSF_LARGESTSIZE:
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if (aftd->dwFormatTag == WAVE_FORMAT_UNKNOWN)
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{
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aftd->dwFormatTagIndex = 1;
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break;
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}
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/* fall thru */
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case ACM_FORMATTAGDETAILSF_FORMATTAG:
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switch (aftd->dwFormatTag)
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{
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case WAVE_FORMAT_PCM: aftd->dwFormatTagIndex = 0; break;
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case WAVE_FORMAT_GSM610: aftd->dwFormatTagIndex = 1; break;
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default: return ACMERR_NOTPOSSIBLE;
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}
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break;
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default:
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WARN("Unsupported query %08x\n", dwQuery);
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return MMSYSERR_NOTSUPPORTED;
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}
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aftd->fdwSupport = ACMDRIVERDETAILS_SUPPORTF_CODEC;
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switch (aftd->dwFormatTagIndex)
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{
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case 0:
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aftd->dwFormatTag = WAVE_FORMAT_PCM;
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aftd->cbFormatSize = sizeof(PCMWAVEFORMAT);
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aftd->cStandardFormats = NUM_RATES;
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lstrcpyW(aftd->szFormatTag, szPcm);
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break;
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case 1:
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aftd->dwFormatTag = WAVE_FORMAT_GSM610;
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aftd->cbFormatSize = sizeof(GSM610WAVEFORMAT);
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aftd->cStandardFormats = NUM_RATES;
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lstrcpyW(aftd->szFormatTag, szGsm);
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break;
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}
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return MMSYSERR_NOERROR;
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}
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/***********************************************************************
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* GSM_FormatDetails
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*
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*/
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static LRESULT GSM_FormatDetails(PACMFORMATDETAILSW afd, DWORD dwQuery)
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{
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switch (dwQuery)
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{
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case ACM_FORMATDETAILSF_FORMAT:
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if (!GSM_FormatValidate(afd->pwfx)) return ACMERR_NOTPOSSIBLE;
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break;
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case ACM_FORMATDETAILSF_INDEX:
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afd->pwfx->wFormatTag = afd->dwFormatTag;
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switch (afd->dwFormatTag)
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{
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case WAVE_FORMAT_PCM:
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if (afd->dwFormatIndex >= NUM_RATES) return ACMERR_NOTPOSSIBLE;
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afd->pwfx->nChannels = 1;
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afd->pwfx->nSamplesPerSec = gsm_rates[afd->dwFormatIndex];
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afd->pwfx->wBitsPerSample = 16;
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afd->pwfx->nBlockAlign = 2;
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afd->pwfx->nAvgBytesPerSec = afd->pwfx->nSamplesPerSec * afd->pwfx->nBlockAlign;
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break;
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case WAVE_FORMAT_GSM610:
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if (afd->dwFormatIndex >= NUM_RATES) return ACMERR_NOTPOSSIBLE;
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afd->pwfx->nChannels = 1;
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afd->pwfx->nSamplesPerSec = gsm_rates[afd->dwFormatIndex];
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afd->pwfx->wBitsPerSample = 0;
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afd->pwfx->nBlockAlign = 65;
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afd->pwfx->nAvgBytesPerSec = afd->pwfx->nSamplesPerSec * 65 / 320;
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afd->pwfx->cbSize = sizeof(WORD);
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((GSM610WAVEFORMAT*)afd->pwfx)->wSamplesPerBlock = 320;
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break;
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default:
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WARN("Unsupported tag %08x\n", afd->dwFormatTag);
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return MMSYSERR_INVALPARAM;
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}
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break;
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default:
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WARN("Unsupported query %08x\n", dwQuery);
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return MMSYSERR_NOTSUPPORTED;
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}
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afd->fdwSupport = ACMDRIVERDETAILS_SUPPORTF_CODEC;
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afd->szFormat[0] = 0; /* let MSACM format this for us... */
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return MMSYSERR_NOERROR;
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}
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/***********************************************************************
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* GSM_FormatSuggest
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*
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*/
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static LRESULT GSM_FormatSuggest(PACMDRVFORMATSUGGEST adfs)
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{
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/* some tests ... */
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if (adfs->cbwfxSrc < sizeof(PCMWAVEFORMAT) ||
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adfs->cbwfxDst < sizeof(PCMWAVEFORMAT) ||
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!GSM_FormatValidate(adfs->pwfxSrc)) return ACMERR_NOTPOSSIBLE;
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/* FIXME: should do those tests against the real size (according to format tag */
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/* If no suggestion for destination, then copy source value */
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if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_NCHANNELS))
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adfs->pwfxDst->nChannels = adfs->pwfxSrc->nChannels;
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if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_NSAMPLESPERSEC))
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adfs->pwfxDst->nSamplesPerSec = adfs->pwfxSrc->nSamplesPerSec;
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if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_WBITSPERSAMPLE))
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{
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if (adfs->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM)
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adfs->pwfxDst->wBitsPerSample = 0;
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else
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adfs->pwfxDst->wBitsPerSample = 16;
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}
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if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_WFORMATTAG))
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{
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switch (adfs->pwfxSrc->wFormatTag)
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{
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case WAVE_FORMAT_PCM: adfs->pwfxDst->wFormatTag = WAVE_FORMAT_GSM610; break;
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case WAVE_FORMAT_GSM610: adfs->pwfxDst->wFormatTag = WAVE_FORMAT_PCM; break;
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}
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}
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/* recompute other values */
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switch (adfs->pwfxDst->wFormatTag)
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{
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case WAVE_FORMAT_PCM:
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adfs->pwfxDst->nBlockAlign = 2;
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adfs->pwfxDst->nAvgBytesPerSec = adfs->pwfxDst->nSamplesPerSec * 2;
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break;
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case WAVE_FORMAT_GSM610:
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if (adfs->pwfxDst->cbSize < sizeof(WORD))
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return ACMERR_NOTPOSSIBLE;
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adfs->pwfxDst->nBlockAlign = 65;
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adfs->pwfxDst->nAvgBytesPerSec = adfs->pwfxDst->nSamplesPerSec * 65 / 320;
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((GSM610WAVEFORMAT*)adfs->pwfxDst)->wSamplesPerBlock = 320;
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break;
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default:
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return ACMERR_NOTPOSSIBLE;
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}
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/* check if result is ok */
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if (!GSM_FormatValidate(adfs->pwfxDst)) return ACMERR_NOTPOSSIBLE;
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return MMSYSERR_NOERROR;
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}
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/**************************************************************************
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* GSM_DriverProc [exported]
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*/
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@ -168,10 +391,15 @@ LRESULT CALLBACK GSM_DriverProc(DWORD_PTR dwDevID, HDRVR hDriv, UINT wMsg,
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case ACMDM_DRIVER_DETAILS:
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return GSM_DriverDetails((PACMDRIVERDETAILSW)dwParam1);
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/* Not implemented yet */
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case ACMDM_FORMATTAG_DETAILS:
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return GSM_FormatTagDetails((PACMFORMATTAGDETAILSW)dwParam1, dwParam2);
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case ACMDM_FORMAT_DETAILS:
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return GSM_FormatDetails((PACMFORMATDETAILSW)dwParam1, dwParam2);
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case ACMDM_FORMAT_SUGGEST:
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return GSM_FormatSuggest((PACMDRVFORMATSUGGEST)dwParam1);
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case ACMDM_STREAM_OPEN:
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case ACMDM_STREAM_CLOSE:
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case ACMDM_STREAM_SIZE:
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